Press



M. H. BALLARD.

PRESS.

APPLICATION FILED 1uLY.s.1s19.

Patented Feb. 7, 1922.

6 SHEETSSHEET 1.

M. H. BALLARD.

PRESS.

APPLICATION FILED JULY5,1919.

Patented Feb. 7, 1922.

6 SHEETS-SHEET 2.

ails

/ N MW 7 M. H. BALLARD.

PRESS.

APPLICATION FILED JULY 5,1919.

1 05,385 Patnted Feb. 7, 1922.

6 SHEETS-SHEET 3.

M. H. BALLARD.

PRESS. APPLICATION FILED JULY 5' 1919.

1,405,385. Patented Feb. 7, 1922.

6 SHEETSSHEET 4.

Fig.6.

I L I) M. H. BALLARD.

PRESS.

APPLICATION HLED JULY 5,1919.

Patented Feb. 7, 1922.

6 SHEETS-SHEET 5.

ill

M. H. BALLARD.

PRESS.

APPLICATION FILED JULY 5,1919.

1 ,4 O5,385, Patented Feb. 7, 1922. t

6 SHEETSSHEET 6- //I l/E/V 7275.

stares rarnroiv BALL RD, or LYNN; r/rnssacnnsn'rrs; assrenon To nm'ran'srron' MACHINERY CORPOR-ATION, or PATERSQNQNEW JERSEY, .ii-con'rormrron or ew JERSEY.

TOcaZZ whom z'zfmoy covweimx 7 I p Be it known that I, MILroN H. BALLARD, a-

citizen or" the United Sta-tesfresidingat Lynn, in the county 01" Essex and State of Massachusetts, have invented certain Improvementsin Presses, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters onthe drawings indicatingzlilre parts in the severalfigures;

This invention relates to presses in which the presser members are relatively movable into different operative relations to each other, and particularly to presses designed to out sheetmaterial by the use of freely movable dies. Q r i p Presses of the typejust referred to are advantageously constructed with presser members having diiierentpresser surface areas and in the preferred construction a movable presser member having a presser' surface area considerably less than a stock supporting bed is movable over said bed to bring it into operativerelation to a die plared upon different portions 01 the stock which is supported upon the bed As these machines are commonly constructed, the movable presser member must be moved into operative position by force eterted diirectly by the operative, with the result that a very considerable part oi the labor incideutalto cutting operations is'expended in overcoming theinertia .oi" the relatively heavypresser member in.

' 'trom'any selected position.

moving it to the desired operative position over the die and-in moving-it away from the die after a. cuttingoperation. I

It is an object of the nvention to provide mproved pow.erfmeans for mov ng the.

presser member i1 do and out 0t operative po- 'sition over the cutting; bed,

.- In one aspect the invention comprises an organization in which the power means for moving the movable presser member isop eratively connected to the said member by flexible means, one of the numerous advantages of such a construe n being' that said ,power means may beread'ilv embodied in machines or attachedlio existing machines in .anvdesired location In a preferred form of the invention the described flex ble means comprises a cable having" a portion arranged to run in opposite directions according; as it is desired to move thepresser member to or In another aspectthe invention comprises rnnss.

Specification of Lea -52mm; fPat'eni qed ;.!7, 1922f; Application filed :ruiyfs 1919. Ser iaI No. 308,779,

provided for controlling the power lateral movement ofthe member at ap redemounted atone side of the stock supporting enr es.

an organized machineiin iw-hich means, s

for relatively moving the presser members I so located below the p-resser member as to be readily accessible to the 'operativel In a 6 0 practical] formj of the invention thefsaid means controls also the actuation fof the niaj- .chlne to effect therp'r'essure applying. movements of the presser member.

An important feature. ofjthe invention 6 5 comprises improved means for' checking the lateral movement of the pre'sser member 'when it is descending toward the workso that the pressermember'maybe moved as rapidly asdesired in a direction to place it over the work and the tripping, lever actuated to cause apressure applying jope'r ftion Q of the pressure member while it is. still movng laterally, the vchecking means operating tostop thelateral movement as described so Vere it not for the provision of such means inthe organization of theimproved machine it wo1'1l d be impossible to operate tliefma} chine witlilth e rapidity and, eiiiciency now .80. attained. Ina preferred form of the in ven- L '4 tion the checkingi means or bralre ,mechanism comprises means mountedindependently of the presser member-and arranged toiengag e the presser member directly'ffor preventing e5 termined point inthe downward movement of the presser. members] H In onetype of press the presser nember is 0 bed upon a post which is vertically reciprolcable to effect the pressure applying operation s' of. tl1e presser memberpthe .presser memberbe ng arranged to ,swing abont the member isjsogreat thatiupon a pressure a1);-

plyingoperation the post and frame 'oiiithje machine spring away fromlhework supineinliei' "tipped upwardly. Hence it 0. sionally happens that worl'rpositioned; t the freeextremitypf thepresser member I V operated upon properly due to thejspringing ,ot' the frame as just described. It is an object of this, invention to iprovic'leimproved i110 that the work-is not struck; a glancing blow.

during pressure applying operations, the

said means operating also to prevent bending or other distortion of the post and itssup-- porting frame. In a preferred embodiment of the invention there is providedmeans operated to act on the presser member for preventing tipping of the presser member in the manner described, the construction being preferably such that a supporting member is arranged to engage-the presser member just as the latter is coming into contact with the work to prevent tipping of the presser member away from the work, a marked advantage of such a construction being that the presser member is independent of the supporting member and freely movable relatively theretoduring the positioning of the presser memher over thework wherever the latter may be located on thework supporting bed.

In a preferred form of the invention the means for checking the lateral movement of the presser member is combined with the means for preventing the tipping of the presser member away from the work sup porting bed in a single mechanlsm which 1s particularly simple in construction and efiicient in operation. In the illustrative constructi'on the said mechanism comprises a member which is independently operated so as to move with the presser member but out of contact therewith during the first part of the pressure-applying movement of the presser member and then to move relatively to the presser member during the latter part of the pressure-applying movement gradually to check lateral movement of the presser member and finally to check completely such lateral movement and afford perfect support to the presser member so that no tipping movement thereof can take place.

7 Another feature ofimportance resides in the provision of means for supporting the presser member in such manner that there is no tendency for the presser member to tip or turn about an axis extending longitudinally thereof during the pressure-ap plying operation. In the illustrative constructiom'the presser member is supported intermediate between its ends on a supporting post, or has a portion extending in line 7 with the pressure-applying portion and on the other side of the supporting post, and is provided with a support for said extending portion so constructed and arranged with respect to the supporting post and the work supporting bed that a line drawn through the center of gravity of the object being pressed and intersecting said support passes also through the axis of the supporting post, such a'construction and arrangement of parts obviously providing against any tendency of the presser member to tip or turn in the manner described.

In a machine organization in which one presser member is movable laterally with respect to another so that the movable mem bcr may be moved into operative position over the work and then away from such position after a pressure applying operation it is desirable to provide means to assist the operator in overcoming the inertia of the presser member in moving it away from operative position thus lessening materially the labor incidental to the carrying-on of pressing operations. It is an object of the invention to provide improved means for the purpose indicated which shall be automatically operative and therefore useful in machines which provide power means for moving the presser member into operative position as well as in machines in which no such power moving means is provided. In a preferred form oft-he, invention, thesaid automatic means for moving the presser member away from operative position come prises a clutch for connecting the presser member with said automatic means, controlled by said presser member, and so arranged as not to interfere with the lateral movement of the presser member to operative position.

Other features and objects of the invention will be apparent from the following detailed description and will be pointed out in the claims.

In the drawings Figure 1 is a view in side elevation of the illustrative embodiment of my invention;

Fig. 2 is a detail view of a check device used in connection with the power mechanism for movin the presser member;

Fig. 8 is a front view of the'illustrative machine;

Fig. l is a detail view of a lever centering device;

Fig. 5 is a plan view of the machine from above;

F 6 is a view partly in section of a detail of the power mechanism for swinging the presser member; I a t Fig. 7 is an enlarged detail view of part of the clutch tripping mechanism; 7

Fig. 8 is a detail view partly in section of a cone clutch retriever mechanism operative in connection with the presser member;

Fig. 9 is a detail view partly in section of the work support adjusting means; and

For. 10 is a fragmentary view of the connections between the main shaft and the presser member for supporting and operat-' ing the presser member, and of operative connections for the power means for moving the presser member laterally over the work supporting bed. i

In the illustrative machine there are provided a work support 12 and a presser menu ber 14 movable laterally over the work supplaced in selected positionon the work support and movable toward and from the support in pressure applying operations. In

order that the presser member may'move laterally over the work supporting bed it is mounted on a post 16 which, in the preferred construction, is nonaotatable, the presser member being arranged to rotate on the post and the latter being reciprocable vertically to carry the presser =member toward and l'rom the cutting bed. In the construction shown, the presser member has an extension 18 in line with the pressure applying portion 14, a support 20 being provided to co-operate with the extension 18 in affording support.

for the presser member during pressure ap- PlYlIlg-OPBIEUOHSHPOII the work, thus relieving-the postf and the frame of the machine trom'any tendency to bend or to become distorted'because of-the strains and stresses incident to the application of great pressure on the work by the overhanging presser member 14. This support 20 is normally spaced about 5% from the lower surfaceof the extension 18 and is arranged to move downwardly with the extension and to come into firmsupporting relation thereto just as the presser member contacts with 5 the worlgwhich maybe adie and the mate- 3 0 rial to be cut thereby. Referring especially to Figs. 1 and 10, it will be observed that the main shaft 22 is provided with an eccentric 24 embraced bythe eccentric strap 26 having secured thereto at 28 a link 30 pivotally connected at 32 to the lower end of the post 16. The same shaft is provided witha second eccentric 34 around which passes the eccen- '16 has moved the presser extension'18 'tric box 36 to which is attached the lower end of a slidebar 38 which carries at its upper end the support 20 referred to above, a gib 39 being interposed between the member38 and the box 36. The eccentrics 24 and 34 are so related to each other as to hold the presser member extension 18 slightlyspaced (approximately g rj from the support 20 when the machine is at rest. Jpon rotation or the shaft through 90 the presser member extension is brought into contact with the support 20 and, as the presser member is'coming into contact with the die, thatis, as the shaft is approaching 180 in its rotation, the eccentric for. the post u further than the support 20 in the'downthe presser member just as itis-about to come into contact with the die,-tlie purpose being to prevent theipresser member from striking a glancing blow on the die. Since the extension'18 on thepresser member comes into contact with the support 20 atthe end of a 90 rotation of the shaft and in the continued rotation of the latter is pressed more and more firmlyagainst the support, the latter acts as a brake or checking means'to prevent further lateral movement of; the

presser member-from and after a predetermined point in the downward movement of .the presser inemben. It will'be apparent that the supporting member-'20 is the important element of a single mechanism'which operates not only to check lateral. movement of the presser member but to prevent tippin'gof the latter away-fromthe work supporting bed. .In order-thatithe.support 20 may co-operate with thepresser memberin all vpositions of the latter relatively to the cutting bed, the said supporting member 20 is formed on an arc the center of which is in the axis of the post 16as willybe clear from" an inspection of Fig. '5 of the drawings. -In

this connection, attention is called to thefact that the presser. member, the cutting bed 12 and'the support 20are so related to-each other that whereverthe presser member 14'.

islocated with respect topany selected'portion of the cutting bed, a line: passing through the center of gravity *of the die being operated upon and through theaxis of the post 16 will fall within the ends of the arcuate support 20 so that there is no tendency for the presser member to turn about I an axis extending longitudinally thereof. In

other words, no .matterinwhat position the I presser member is operating, there will be 1 no opportunity for twisting or other torsional strains to develop which jwould tend to distort or damage-thepresser member or p the machine tram v I i i Means 1s provided .for swinging, the

position with respect to the cutting bed-and the presser member is caused. to apply pressure upon the die, the said means, comprising preferably a lever 40 having a handle,

'42and' pivoted at .4-,tO the presser member, the rear portion 46 of the lever being formed upon the arc of acircleand; arranged to be engaged "by thefuppe'r end 4820f a clutch P tripping mechanism comprising partsmounted in the presser member to move therewith andshown in detail in Fig.7 of the drawings. The mechanism for connecting-the lever .40 with the .clutch tripping lever 50 i for operating the clutch mechanism whereby is preferably of such a construction that only one reciprocation of the presser mem,

bercan take place upon actuation ofthe lever 40. In otherwords, the lever 40 must 13 0 be actuated by the operator; each time" that 1'10 presser-member by-hand intoi ranydesired, V

a pressure applying operation on the die is desired so that'the lever 40 Inust'be depressed and then released before a second reciprocation of the presserbmember can take place. Apreferred construction for ensuring this manner of operating-the machine is shown to comprise a lever 52 havingan extension 54'toengage normally over the upper surface of the part 46 of the lever 40, the said lever 52 being pivoted at 56 to a collar 58 fast on the rod 60, a spring (52 being connected at its ends to studs or pins 64 and 66, located respectively on the collar 58 and on the lever 52 above the pivot point 56.0f the latter and tending to keep the extension 54 of the lever constantly in contact with the portion 46 of the operating lever 40. Mounted in an upper floor 67 of the presser member extension-18is an adjustable bolt 68 having thereon a slidable sleeve and collar 70 arranged to be engaged by an arm portion 72 of the lever .52, the said portion 72 being slotted at 74 to embrace loosely the sleeve member 70. Mounted on the lower end of the rod 60, which is guided in bearings 1n floors of 'thepr'esser extension 18, is a hook member 76 arranged to'engage the under surface of an arcu'al' member 78' having beveled end portions at '80 and centrally mounted upon the upper end of the rod 82 whichis slidably pivoted at its lower end in a bifurcated portion 84 of the clutch operating lever 50. Adjustably mounted on the'rod 60 is a second collar 86 carrying an adjustable pin or stud 88, the arrangement being such that the spring 90' which is connected to the upper collar 58011 the rod 60 and to a pin or hook 92 in the lower floor 94 of the presser member extension 18, constantly tends to'hold the lower end of the adjustable pin 88 in cont-act with the floor portion'94- of'the presser member extension 18. ation of the lever 40 the rear end portion 46 of the'same moves upwardly carrying the lever 52 with it and lifting the rod 60 which carries the rod '82 "upwardly through the hook 76 engaging under the arcual member 78', and thus actuating the clutch-lever 50. Practically at the termination of the upward movement of the end portion 46 of the lever 40 the portion 54 of the lever 52 slides off of the upper surface'96 of the end portion 46 and engages with the rear curve surface of the end portion46 against which it is held by the spring 62. Thistipping of the lever 52 is caused by the sliding collar member 70 striking against a shoulder 97 on the bolt 68 after which the lever 52 turns about'68 as a fulcrum until the end 54 slips off of the lever 46 When the extension 54 downwardly by the spring 90, before de- "scribed, and thus the lever 40 must -be re- Upon" actuleased before the clutch operating rods '60 and '82 can again be actuated to trip the clutch. When the lever is released the ,rear end portion 46 moves downwardly as the front portion of the lever moves upwardly under the action of the spring 98 (Fig. 1), thus ire-engaging the extension 54 of the lever 52 with the upper surface 96 of the lever end 46. Since the lever 52and its connected rod are carried by the presser; member extension 18, as the latter swings about the axis of the post 16 a sliding connection must be provided between the lower end of the rod 60 and the upper end of the rod 82 thus accounting for the arcual plate or member 78 which, as' Will be observed upon inspection of Fig. 1, is

stationary in the horizontal plane, being mounted for vertical sliding movement in the frame of the machine and in connection with the forked end of the lever 50. Inasmuch as the presser member 14 may be swung to one side, entirely clear of the cutting bed 12 in which position the hook 76 rangement just described is such that if the operativ should depress the starting lever 40 while the presser member is at one side of the cutting bed there would be no actuation of the clutch operative lever 50 since the hook 7 6 is disengaged from its co-operating member. If, however, the lever 40 be maintained in depressed position while the presser member. is swung into position over the cutting bed the hook 76 will re-engage with the plate 7 8 and thus cause tripping of the clutch operatlng lever 50 and instant operation of the machine as the presser -member, returns to operative position over 7 the bed. In connection with the means above described for ensuring a single .re-

ciprocation of the presser member upon Ettl'liltlOll of the lever 40, the main shaft 22 of the machine is provided with a one "revolution clutch preferably, though not into and out of operative position over the cuttingbed. This is especially desirable in) the present instance since the presser member together with its extension 18 is a relatively heavy member, the whole construction being designed particularly for use in the cutting of extra heavy sheet material. The

power means for moving the presser mem ber comprises preferably a cable attached to cable end portions is passed one or more times around the drum member 108 and from there passes over an idle pulley 110 mounted in a bracket 112 at the upper left hand side of the machine frame and thence to a second idle pulley 114 mounted in a similar bracket 116 directly below the first bracket and passes thence over a drum 117 turning freely on a bearing 118, (Fig. 6) the cable passing from the said drum around an idle pulley 120 (Fig. 3) carried by a bracket 122 and from there to a second drum 124 alsoturning freely on a bearing 126. From the second drum the cable passes over an idle pulley 128 and 'from there, around the drum member 108 on the presser member 14 to which its end is fixedly attachedas before stated. In order to cause the cable to run first in one direction and then inthe other, it is necessary only to operate the drums 117 and 124 selectively in the desired directions and this is accomalished by connecting the drums one atfa time to the constantly rotating shaft 130. 111 the construction shown, the means for thus connecting the drums to the shaft comprises a double cone clutch consisting of a clutch member 132 by which the drum 117 is clutched to the shaft 130 and a clutch member 134 by whichthe drum 124 is similarly op'eratively connected to the shaft. Normally the clutch members are disen-x gagedfrom their-respective drums but upon endwise movement-of the shaft 130 either clutch member, as desired, is caused to engage withits respective drum. Endwise.

movement of the shaft 130 may be secured through any desired meanathat shown comprising a sleeve 136 freely rotatable with respect to the shaft 130 and screw threaded exteriorly to engage with corresponding screw threads in a nut 138 fixedly secured in the frame of the machine. The sleeve 136 is fixedly engaged by a member 140 having a handle or arm 142, collars 144 and 146 fix edly attached to the shaft 130 being arranged to engage with the handle member 14.0 and with the sleeve'136, respectively, to hold the same against endwise movement on the shaft while permitting the shaft to rotate independently of the combined sleeve and handle member. If the handle 142 be moved in either direction the sleeve136 is.

aused to turn in the fix nut 138 and thus to move endwise in said nut carrying with it in its endwise. movement the shaft 130; Thus, if the shaft is; moved to the right in Fig. 6 the clutch member 132 iscause'd'to engage with the drum 117 and if the shaft be moved to the left, in the same figure, the other clutch member 134 is caused to engage with its drum 124 whereby the cable is. i

causedtorun in the desireddirection, the

drum, which at the time is not clutched to the shaft, turning freely with the other drum and cable in the direction determined by the clutched drum. The endwise mov-j able shaft 130 is driven constantly in one direction by connections from the main shaft. of the machine, the said connections provid ing preferably an endless cable or belt 148 passing around a, pulley 150'fixed to or integral with the power pulley and over two idler pulleys 152 and 154. and thence over a pulley 156 intermediate. of the other two and fixed to a shaft 158 having fixedly attached thereto a worm.160,the'worm being in mesh with a worm gear 162 splinedon the-endwise moving shaft 130. In order that the shaft 130 may be shifted endwise atithe; will of the operator, the arm 142, connected.

to the sleeve 136 (Fig. 6), as described above, isconnected by a link 164- (Fig. 3) with the lowerend of a lever 166 pivoted at 168 to. a bracket on the frame of thema-j chine and provided with a handle 170 upon" movement of whichto the right vorleft, in] Fig. 3, movement of the arm 142 isproduced to effect the desired endwiseshifting of the shaft 130.. In order that Itheremay be no.

tendency to lock the shaft 130 against endwise movement through the. interlocking threads on-the sleeve 136 and the fixed nut 138, the pitch of thesethreads is made relatively steep so that slight rotative movement;

of the arm 142 causes the desired endwise.

shifting of the shaft to effect a clutching ofeither drum to the shaft, the construction and arrangement being such that -a 'slight,

movement of the arm 142 in the reverse direction will moveithedouble clutch to neu-f tral position; that is, an'intermediate position with both drumsfree of clutching. eng

gagement with their respective clutch members. l llhile the power means for moving the presser member may be controlledby thehandle 170, as just described, and'then actuation of the machine to cause a-pressure applying operatlon of the. presser member.

be made dependent upon depression. of the handle 42, a more eflicient and satisfactoryarrangement is comprised in zthecontrolof the'power jmeans for movingthe presser member andsthepower-means for causing pressure applying movements of the-presser thepower means forj'nooving the presser member is controlled, is also connected in such manner as to control the power means for effecting reciprocation vertically of the presser member. Preferably, therefore, the lever 166 comprises two members 172 and 174 (Fig. 1) pivoted together at 176 and normally held in close relation by a spring pressed bolt 178 passing through both member's, the arrangement being such as to permit the member 17 2 to be moved toward the right to a limited extent as shown in Fig. 1 and, upon such movement, the clutch lever 50 is operated through the connecting link 180 pivotally attached at one end to the upper end of the lever member 172 and pivotally and slidably attached at its other end toan arm 182 fixed to a stub shaft 181- which carries the lever 50. From the construction described, it will be clear that the handle 170 may be moved either to the right or left to control the power means for moving the presser member and then moved toward the operator to cause the throwing in of the clutch on the main shaft of the machine by which a single pressure applying reciprocation of-the presser member is produced.

In order to hold the lever 166 normally in neutral position and to assist the operator in returning it to such position, there is pro vided a mechanism for thus centering the lever 166, the said mechanism comprising in the construction shown (Fig. 3) two spring pressed bolts or pins one of which is shown in detail in Fig. 1 of the drawings. As disclosed, each device comprises a casing 186 adapted to be fastened to the frame of the machine and carrying a bolt 188 normally pressed outwardly from the casing by a spring 190, the tension of which may be adjusted by the set screw 192. One of these spring devices is located on each side of the lever 166 with the spring pressed bolts engaging on opposite sides of the lever 166 below the pivot point 168 of the lever. Preferably there is also provided in connection with the cable means for moving the presser membeiya buffer mechanism to limit yieldingly the swinging movement of the presser member in each direction. In the construction shown, this buffer mechanism comprises a casing 19a; threaded upon the cable 102 and containing a block 196 pinned to the cable and springs 19S disposed one at each side of the block. The construction and arrangement are such that as the buffer device mov mg with the cable comes in contact witheither bracket 112, 116 further movement of stop on the cable 102, the extent of the lat eral movements of the presser member.

In connection with the presser member there is-preferably provided a spring retriever mechanism which will operate to move the presser member away from the die as the presser member arises at the end of a pressure applying operation. Such a device will prove especially useful whenever the presser member is to be moved only a short distance to one side of the die as when the die is small and the light is coming from such a direction that no great movement of the presser member is necessary. Preferably this spring retriever mechanism comprises a cone clutch 200 fitting in a recess in the lower surface of the presser member 14: and surrounding the post 16 as disclosed in Fig. 8 of the drawings. The clutch does not normally engage the presser member so that the latter is free to be swung at all times toward operative position. Surrounding the post and holding the clutch member at the upper limit of its movementis a spring 202 having one end fastened to the frame which carries the post 16 and the other end securely attached to a sleeve member 20 1 which encloses the spring and is fixedly attached to the clutch member 200. The sleeve member 204 above referred to has a flanged engagement with a second sleeve member 206 which is screw threaded into'a bracket or ring 208 fixedly secured to the frame surrounding said post. The construction and ment are such that as the presser member begins its descent the clutch member 200 is en:

ged with the presser member with the result that the spring 202 is wound up at the same time that it is being compressed. Hence as soon as the presser member commences to rise after a pressure applying operation, the spring begins to unwind and through the friction clutch engagement with the presser member causes the lateral movement of the presser member away from over the die. Clearly the extent of effective operation of the spring retriever mechanism thus described depends upon the speed with which the presser member is moved to operative position and. to a tripping of the clutch be fore the presser member reached a position directly over the die so that the presser member is moving laterally toward the die at the time the clutch is tripped. In other words,

the presser member must be moving down wardly toward the die at the same time that it is moving laterally toward the die in order to engage the cone clutch 200 and wind up the spring. Thus, if'the presser member is being manually moved. to operative position a premium is placed upon rapid work in moving the presser member. Otherwise, that is, with slow movement, there is no ing action as the presser member arises from the die.

retriev- I cerator.

1,46their,'

tical adjustment of thepost-nor of the press er member with respect to the work supporting bed or cutting block. Hence the work support itself is made adjustable to summi ous thicknesses of work and to enable the machine to be operated with dies of various heights. In the construction shown,'the

frame of the machine is strengthened at the front thereof by a plurality of ribs, such as that shown at 210, to provide a strong sup; port or base 212, in direct line with the worksupport slide214 guided in ways, formed in part by plates 215 Upon the support or base there rests a fixed nut 216 with which is 'en-,

gaged an exteriorly threaded post member 218 arranged to be turned'in the nut means comprising a Worm 219 on a shaft 220 and a gear 222 atthe upper end ofa postx224 fixedly attached to the post memberQlS, Upon rotation of the hand wheel 226 the work support may be adjusted upwardly or' i tivelyr connfectingesaidfpower means with-the downwardly as desired. 4

In view of the forego ng description, 1t is thought that no extended statement of the" mode of operation of the machine is necesfi sary. After work hasbeenplaced upon the" i'able 12 and the die located. on the w'orlrythe presser member is moyedto operative positlon over the die and in the construction shown this movement of the presser member may be accomplished either manually by force exerted directly by the operatoror by power means under the control of the op} If the 'presser member is, to be moved but a slight distance into position over the die, the operator may make'usef oi the handle 42' to swing the presser member and then may cause a pressure applying movemei' t of the'presse'r member slmplylby depressingthis handle. At his option'ghow 1 ever, the operator may use the power means; for moving the presser member underjfa-l'l conditions, in which case the handle 170 is moved in the directionit is desired to move the presser member to cause the engagement of the proper clutch and dru m on theei wise mot able shaft as above deseribed and ion thus move the presser member into pies over the die and, as the presser ZUG-IHbQ? proaehes the, die the same handle may 3 t moved in a direction to tri p the clluclron the main shaft and thus cause a pressure applying operation of the. presser member; ,{In' this connection, it should be stated the; expert operator does not wait until thepr'ess er member is directly over the die before tripping the clutch, but in rapid operation of the machine the elutch is trippedasthe presser member approachesthe die the die will not in any case be struclra glancing blow, as meansis proyided'ior preventing a blow of this kind, the saictmeans being i the c found the brake :lurnish ed" the "sup port 20, (aboye describedg 'l-Xs. the presser" member ri'ses'," moved laterally by {the i spring retriever ineeha fism"providedthat'ie has been lmove'd} into 1 operative position with "sul ent peed. Otherwise, the operas positions and toward endTfr'o'm eachother I in pressure applying I movements, and means comprising i ea'ble'f for causing-relative movement of j the pr es'erj embers] into and outof selected operative positions Q V 2. In a 'maehineof 'thefclas's assented, a cutting bed, a presser member, a frame for movably supporting sa id'i presser member,

power means, ,andlfieXible, mean -rot opera- Q ere e'e imembe 15. tea n m v nf t presser' memb lnto and out, of 'p ratlve P05 over t'he eutting v ainaeh'ine.offthe blassft Y #p' s rmember; ,xnd, m

ca e for nroving th" pressen cuttln bedQa pre ser member; power meal 1S3"; andale ble fo o t vely connectmgs'aid-t position over power with' the presserf member for 7 moving the pres er intoand ont'of operatiee i osition'oyerlthe eutting bed; j "5' hin the cla'ssfdeseribed, a"

bed; p es erfm e pe o a: th -e e em ster, admin n't 1'" m enib andfrn'eans' compri ingfa cable attachedto said 'drum for. Ijotfatinq the press r meml)e1 to,1n0y e" r ie b y'ibw t i th P e er Ineviti n to place' tl epre er or; cont 7 oiling yer In' macliine'of'th'e" use des'eribed a w t ns bed, answer m mber? a re t. tatabl y supporting the 'press'er member, and

power means comprising a cable for causing rotation of the presser member in either direction to place the presser member in operativc position over the cutting bed.

9. In a machine of the class described, a

cutting bed, a presser member, a post for rotatably supporting the presser member over the cutting bed, power means for causing rotation of said presser member, and a cable for connecting said power means with said presser member.

10. In a machine of the class described, a cutting bed, a presser member, a post for rotatably supporting the presser member, aframe in which the post is. mounted for reciprocation, power means for causing rotation of said presser member, and means eX- tending upwardly at one side of the cutting bed in a position accessible to the operator for controlling said power means to effect swinging movement of the presser member at the will of the operator.

11. In a machine of the class described, a cutting bed, a presser member mounted for movement into and out of position over the cutting bed, power means for causing such movement of the presser member comprising a constantly driven shaft, a drum arranged to be driven by said shaft, and a cable wound on said drum and operatively connected to the presser member to cause swinging movement of the presser member at the will of the operator.

12. In a machine of the class described, a cutting member bed, a presser member rotatably mounted for movement into and out of position over the cutting bed, and power means for causing such movement of the presser member comprising a constantly rotating shaft and a cable operatively connected to said presser member and arranged to be connected to said. shaft to run in opposite directions to cause movement of the presser member into or. out of operative position over the cutting bed.

13. In a machine of the class described, a cutting bed, a presser member, a post for rotatably carrying said presser member, and power means for causing rotation of said presser member comprising a constantly rotating shaft, drums arranged to be driven selectively by said shaft, and a cable passing around said drums and operatively connected to said presser member.

14. In a machine of the class described, a cutting bed, a presser member, a post carrying said presser member for movement over the bed, power means for causing rotation of said presser member comprising a cable, and means under the control of the operator for causing said cable to run in opposite directions to cause rotation of the presser memher into or out of operative position over the cutting bed.

15. In a machine of the class described, a

cutting bed, a presser member, a post sup porting the presser member for movement over the bed, power means comprising a cable for causing rotation of the presser member in either direction, power means for causing pressure applying movement of the presser member, and means under the con trol of the operator for controlling the direction of run of the cable and for causing the shaft upon endwise movement of the latter,

and means for returning the said shaft to neutral position.

17. In a machine of the class described, a cutting bed, a presser member mounted for movement into and out ofselected positions over the cutting bed, power means for moving the presser membenand means located at one side of the cutting bed in a position accessible to the operator for controlling said power means to effect movement of the presser member at the will of the operator.

18. In a machine of the class described,

presser members relatively movable with respect to each other into different operative positions and toward and from each other in pressure-applying movements, and means comprising a flexible device for causing relative movement of the presser members into and out of selected operative positions.

19. In a machine of'the class described, a cutting bed, a presser member, and means comprising a cable having a portion con structed and arranged to run in opposite directions for moving the presser member into or out of selected position over the cutting bed. 7

20. In a machine of the class described, presser members relatively movable intoand out of operative position, means for causing such relative movement of the presser members, and means comprising a stop associated with said first-mentioned means for limiting the said relative movement of the presser members.

21. In a machine of the class described,

22. In a machine of the class described, a

cutting bed, a presser member,a post rotatably carrying the presser member, means for causing rotation of the presser member, and means for limiting the rotation of the presser member away from the work supporting member during pressure applying operations. 7 24:. In a machine of the class described, a work supporting member, a presser member arranged to'co-operate with said work supporting member, aframe, a supporting post for the presser member. moiuitedin the frame, and means operating on the presser member and movable therewith for preventing bending of the post'and the supporting frame away from the work supporting memher during pressure applying operations.

25. In a machine of the class described, a work supporting bed, a presser member, a

post carrying said presser member andver-v tically reciprocable to move 'the, presser member toward and from said bed, and means independent of the post and presser member for preventing lateral displacement of the pressermember during the pressure applying operations. v I

r 26. In a machine of the class described, a work supporting bed, a presser member, a post carrying said presser member and vertically reciprocable to move the presser member toward and from saidbed, and means reciprocable with the post to support the presser member and post against lateral tipping displacement during the pressure applying operations 27. In a machine'of the class described,

work supporting bed, a presser member ex.-

. tending over the bed, a post for supporting the presser member intermediate otits ends and for effecting vertical reciprocation of the presser member, and means operated to act on the presser member to support, the, presser member and the post against lateral displacement of the presser member .with respect to thebed dur ng pressure applylng operations.

28. In a machine of the class described, a:

worx supporting bed, a presser member errtendlng overjtlie bed, a post for, support ng and for effecting vertical reciprocation-of the presser member, a main shaft, and means operating with one of said a-rmsto hold tlie' presser member having an arm extending in line with the presser member overthe Work supporting bed, and means co-operating with said arm for supportingthe presser member against tipping movement away fromthe bed during pressure applying operations. -v

30. In a machine of the class described, a work supporting bed, a presser member, a post: supporting the presser member, said; presser member having an arm extending in line with the presser member over the Work supporting bed, and a vertically reciprocable slide for supporting the presser member and its post against distortion during pressure applying operations.

31. In a machine of the class described, a worksupporting bed, a presser member, a post for supporting and effecting vertical reciprocation of the presser Imember, and} means mounted independently of the pressermember and arranged to engagethe presser member directly for preventing" lateral movement of the presser member at apre' determined point in its pressure "applying movement toward theworksupportmg bed, 32. In a machine of the'class described, a work supporting bed, a presser member, a post for supporting the presser member and for effecting vertical reciprocations thereof, said presser member having an extension which projects from the post in a direction different from that of the presser member, and yertically reciprocable means co-operating with said extension to retain the presser member against lateral movement at "a Ipre determined point in its pressure applying movement. 7 v I f In amachine of the'class. described, a work supporting bed, 'a presser member, a post for supporting and effecting vertical; reciprocation of the presser member, and means arrangedin parallelism with the post and vertically reciprocable therewith ,for locking the pressermember against lateral iro movement at a predetermined point in its ressure a) 1 in movement. toward. the

for effecting vertical reciprocations thereof,

said presser member having arms. extending on opposite s des of the post," andme'ans co;

presser f member against lateral movement. just as it is about to come into contact with the worl'r in a pressure, applyingoperation,

In a machine of the class described, a

work supporting bed, a pressermemberover said bed, a post for supporting and effecting vertical reciprocations of thepresser niem her, a main shaft for movingisaid post? and a member slidable in tl1e, frame of the ma} chine and operated by said shaft for locking the presser member against lateral movement at a predetermined point in its movement toward the work supporting bed.

36. In a machine of the class described, a work supporting bed, a presser member above the bed, a post for supporting and effecting vertical reciprocations of the presser member, and a member arranged to contact frictionally with the presser member to operate as a brake against lateral movement of the latter.

37. In a machine of the class described, a work supporting bed, a presser member over said bed, a post for supporting and effecting vertical reciprocations of the presser member, a main shaft for moving said post, a member slidable in the frame of the machine for locking the presser member against lateral movement just as it is about to come into contact with a die in a pressure applying operation.

38. In a machine of the class described, a work supporting bed, a presser member above the bed, a post for supporting and effecting vertical reciprocations of the presser member, a vertically movable member arranged to contact frictionally with the presser member to operate as a brake against lateral movement of the latter, and a main shaft having eccentrics for operating the post and said vertically movable brake member. 7

39. In a machine of the class described, a

.work supporting bed, a presser member exber to cause the braking action on the presser member just as the latter is coming into contact with a die on the work supporting bed.

10. In a machine of the class described, a work supporting bed, a presser member eX- tending over the bed,a post for supporting the presser member and for moving it to ward and from said bed, a braking member arrangedto engage the presser member to check lateral movement thereof just as the presser member comes into contact with the die, a main shaft, an eccentric on the shaft for reciprocating the post, and a second eccentric operating on the braking member to move the same with the post during the first part of the descent of the presser member and then to move the braking member relatively to the presser member to cause the braking action on the presser member just as the latter is about to come into contact with the work on the supporting bed.

41. In a machine of the class described, a work supporting bed, a presser member movable toward and from the bed, a post for supporting the presser member and for effecting vertical reciprocations thereof, a frame for supporting .the post, and mechanism interposed between the presser member and the frame for the post and automatically operative to return the presser member in a direction laterally of the die at the termination of the pressure applying operation.

42. In a machine of the class described, a work supporting bed, a presser member movable toward and from the bed, a post for supporting the presser member and for effecting vertical reciprocations thereof, and an automatic retriever mechanism for the resser member comprising a clutch controlled by the presser member.

43. In a machine of the class described, a work supporting bed, a presser member movable toward and from the bed, a post for supporting the presser member and for effecting vertical reciprocaticns thereof, a frame for supporting the post, and mechanism comprising a spring surrounding the post and operative automatically to return the presser member in a, direction laterally of the die at the termination of the pressure applying operation.

4A; In a machine of the class described, a work supporting bed, a presser member movable toward and from the bed, a post for supporting the presser member and for effecting vertical reoiprocations thereof, and a retriever mechanism for the presser member comprising a cone clutch and a spring, said clutch being arranged to be forced into firm contact with the presser member by said spring as the presser member is moved toward the work supporting bed.

45. In a machine of the class described, a worr supporting bed, a presser member movable laterally along the bed and also toward and from the bed in pressure applying operations, a shaft, clutch mechanism for connecting said shaft to the source of power, a lever, and connections between said lever and said clutch mechanism constructed and arranged to trip the clutch mechanism and to become inoperative for a further clutch tripping operation; until said lever has been released by the operator.

46. In a machine of the class described, a work supporting bed, a presser member movable laterally along the bed and also toward and from the bed in pressure applying operations, a shaft, clutch mechanism for connecting said shaft to the source of power, a manually operable lever mounted on the presser member, and connections swinging the presser. member. laterally over the cutting bed, a manually operable mem ber mounted on thepresser member to contr l t ep su app y n p a ion the presser ,member, and a second manually operableleverto control the-power means for swingingthe presser member laterally over the work supportingbed. V

, 58,,In a machine 'otthe classfdescribed, a work supporting bed,'a presser member, a

, post'upon which the presser member isrotatably mounted, and means for automatically movingthe; presser member out of pe a p tio imm iately-Mme P ies sure applyingoperation,

. movement laterally overthe die,andmeans operation,

operable to; act upon the fpress er member to prevent said member from tipping away from the irbed during a pressure 1 applying operation. ;60. In a machine ofthe class described, a.

work.- supporting member, a presser member,

arranged to cooperatewitlrthe work supporting member, .a" post npon' fwhich the presser member is: ,rotat ably mounted, fO I movement {laterally over, the die an d I means for lockingthe rotatable presser member against lateral movement just as itis about to strike'the dielin a, pressure applying 61. In a machine of the class described a w'ork supporting member, apresserfmemb'e'r arranged to cooperatewith the' vvork supg porting member, a post; Iupon which the presser; member is rotatably ountain].- niovemehtdaterally over theldie, and a power operated slide. for locking thegrot atable presser member, againstlateral 'n'iovef ment just as itfis about to strike the r lie apressure applying operationi i 1 62. I a mach'ne oithe,clas described, a

work supporting member, a presser member arranged to co-operatefvvith the worlc 'su'pporting member, a, post upon which the presser member is rotatably .mounted .ior movement. laterally overjthe die, and slide member arranged p arallel with the post for locking the presser. member against rotation just as itflis abou to" strike the ldieiduring a pressure applying operation, 1

63. In a machine of the classidesc are cutting bed, apresser member, jpoweraneans' for cau sing movemcnt of the presser memberlineither' direction to place'the pi sser member in diilerent operative positions over the cuttingbed, a" lever mounted below the presser member to turnon afhori'zontal anis for controlling-said powermeans, and con: nections between 'said' ineansQand the lever so arranged that movement of the lever in a given direction is followed by movement of the presser member 1n the same dlrectlon.

64. In a machine ofthe class described, a 7

cutting bed, a presser member, power means for causing lateral movement of said presser 1nember,;power means for causing pressure applying movement of the presser member, said power means being independently operable .With respect.to each other, and a single -means mounted below the presser member for controlling both said power means,,, 1 i 5 b (35. In a-machine of the class described, a cutting bed, a presser member, power means for causing movement of the presser member into and out of selected positions over thegcuttingbed, power means for moving the presser member toward and from the b'ed,,.and means located. atione side of the cutting bed a position accessible to the operator for controlling either off'said power means independently of the other to effect movement of the presser member at the will of, the operator.

65. In a, machine of the class described, presser members relatively reciprocable toward and from each other in pressure applyingoperations and relatively movable laterallyinto and out of operative position,

- p; ver means for causing such relative lat-, eral movement ofthe presser members,and-

means,,comprising a stop controlled by said firstm entioned means, for limiting the said rel ive movement 01. the presser members. 67', In amachine'of the class descr-ibed, a work supporting bed, a presser member, powermeans for causing movement of the presserniember into and out'of selected pot't ions over the'bed, power means for moving the presser member toward and from thefbed in pressure/applying operations, and means 'located below the, plane of the supporting surface of the bed and ma position accessible to the operator for controlling the first-mentionedpotver-means to effect lateral movement of the presser member at the will ofti e operator independently of a pressureapplying operation of the machine. 7 68. In a machine ofthe class described, presser members relatively movable into and out of operative position with respect to eachother, means for causing such relative movement of the presser members, a stop located'on the frame of the machine, and a sec- 1 ond stop asssfociated with said means and movable during the 'relatlve movement of the during the movement of the presser member and through distances directly proportional to the distance traveled by the presser member to co-operate with the first mentioned stop in limiting movement of the presser member in one direction, and means for op-.

eratively connecting the second stop with the presser member.

70. In a machine of the class described, a work supporting bed, a presser member movable laterally over the bed into and out of various operative positions with respect thereto, a stop located on the frame of the machine, a second stop arranged to co-operate With the first mentioned stop to limit the movement of the presser member, and a cable for operatively connecting the second mentioned stop with the presser member.

71. In a machine of the class described, a work supporting bed,'a presser member movable toward and from the bed in pressure applying operations and also laterally over the bed into and out of various selected operative positions with respect thereto, power means comprising a cable for moving the presser member laterally of the bed, a stop located on the frame of the machine, a

second stop mounted for movement toward and from the first mentioned stop, and a cable connecting the presser member with the second stop and so arranged that the presser member is held against movement when the stops come into contact with each other.

plying operations and also laterally over a the bed into and out of selected operative positions with respect thereto, power means for causing the presser member to approach and recede from the bed, power means 'for moving the presser member laterally over the bed, a stop mounted on the frame of the machine, and a second stop operative by the last mentioned power means in co-operative relation to the first mentioned stop to limit the movement of the presser member. f

7 3. In a machine of the class described, a work supporting bed, a presser member,

power means for causing movement of the presser member into and out of selected positions over the bed, power means for moving the presser member toward and from the bed in pressure-applying operations, and an upright lever located at one side of the bed and in a position accessible to the ope'rator for controlling the power means to eifect movements of the presser member in amounts determinable by the operator.

In testimony whereof I have signed my name to this specification.'

' MILTON H. BALLARD. 

